package net.a6polo.renren;

import java.security.MessageDigest;

public class MD5 {
	 public static String getMD5(String s) {  
	        try {  
	            MessageDigest md5 = MessageDigest.getInstance("MD5");  
	  
	            byte[] byteArray = s.getBytes("UTF-8");  
	            byte[] md5Bytes = md5.digest(byteArray);  
	  
	            StringBuffer hexValue = new StringBuffer();  
	  
	            for (int i = 0; i < md5Bytes.length; i++) {  
	                int val = ((int) md5Bytes[i]) & 0xff;  
	                if (val < 16)  
	                    hexValue.append("0");  
	                hexValue.append(Integer.toHexString(val));  
	            }  
	  
	            return hexValue.toString();  
	  
	        } catch (Exception e) {  
	            e.printStackTrace();  
	            return null;  
	        }  
	    }  
}
